Numerical control plate shearing machine capable of preventing reduction of cutting precision

Abstract

The invention relates to the technical field of numerical control, and discloses a numerical control plate shearing machine capable of preventing reduction of cutting precision. The numerical control plate shearing machine comprises a bottom box, supporting columns, a plate shearing cutter, a top plate, a base, transmission assemblies and an anti-scratching assembly; the top end of the bottom box is fixedly connected with the base, and the top end of the bottom box is located at the top end of the base and fixedly connected with the supporting columns; the left sides of the supporting columns are movably connected with the plate shearing cutter, the top end of the plate shearing cutter is movably connected with the top plate, and the transmission assemblies are movably connected with the left sides of the inner walls of the supporting columns; and when the plate shearing cutter moves downwards, the transmission assemblies drive the anti-scratching assembly to operate, a fixed rod drives a movable rod to move through a connecting rod, the movable rod drives a movable block to slide at the bottom end of a cutter groove, a guide rod moves downwards under the acting force of spring push rods, the movable block pushes metal residues, at the moment, the movable plate and the fixed plate are separated, the metal residues fall into a material collecting block, therefore, the surface of a metal plate cannot be scratched, and the cutting precision cannot be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of numerical control, in particular to a numerical control shearing machine which prevents the reduction of cutting precision. Background technique [0002] The CNC shearing machine is a mechanical processing equipment that controls one or more shearing machines to complete the action control through the CNC program. The metal plate is transported to the shearing machine through the feeding device, and then the shearing machine passes through the shearing knife. Insert the metal plate into the knife groove to cut the plate. During the process of cutting the metal plate by the shearing knife, the metal plate will drop some metal residues under the influence of the extrusion stress of the shearing knife, and these metal residues will remain on the knife. In the groove, when the shearing machine continues to work for a period of time, it must stop running to remove these metal residues. If it is not removed, th...

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Problems solved by technology

[0002] The CNC shearing machine is a mechanical processing equipment that controls one or more shearing machines to complete the action control through the CNC program. The metal plate is transported to the shearing machine through the feeding device, and then the shearing machine passes through the shearing knife. Insert the metal plate into the knife groove to cut the plate. During the process of cutting the metal plate by the shearing knife, the metal plate will drop some metal residues under the influence of the extrusion stress of the shearing knife, and these metal residues will remain on the knife. In the groove, when the shearing machine continues to work for a period of time, it must stop running to remove these metal residues. If it is not removed, the metal residues will scratch the metal sheet to be cut when the shearing machine is running, making the metal sheet The surface is not beautiful, and it will affect the next processing of the metal sheet. For example, when the metal sheet is painted, because the surface of the metal sheet has scratches, the metal sheet is easy to rust even after painting. In addition, due to the accumulation of metal residue In the groove (it will block the knife groove in severe cases), when the shearing knife cuts the metal plate, it will cause a certain deformation of the plate, which will greatly reduce the cutting accuracy. Therefore, we propose a CNC shearing machine with scratch resistance and reduced cutting accuracy Trigger

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